<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<form action="/user" method="post">
    <p><input type="text" name="username" placeholder="请输入用户名"></p>
    <p><input type="password" name="password" placeholder="请输入密码"></p>
    <p><input type="submit" value="立即登录"></p>
</form>

</body>
</html>